Answer:
Composition. The universe is composed almost completely of dark energy, dark matter, and ordinary matter. Other contents are electromagnetic radiation (estimated to constitute from 0.005% to close to 0.01% of the total mass-energy of the universe) and antimatter.
Explanation:
your answer
The vibration caused by p waves is a volume changes, alternatimg from compression to expansión in the direction that the waves is traveling.
445/100 - 5/4 = 445/100 - 125/100 = 320/100 = 16/5 = 3 1/5.
